Choeradodis sp. (Mantis) cleaning its legs... has only one ear!!!

(ENG): Cheradodis sp. Mantis cleaning its legs Notice the fold in the tegument between the second and third pair of legs, that is its ear. Usually animals have two ears, this is because they need to recognize the sound's direction, that is the position of the sound emissary. But this species does only have one ear, due to its specialization in detecting bats. If this Mantis is flying from a treetop to another and detect the bat click, it will fold its wings and fall to the ground. It doesn't matter the position of the bat, the only important thing for the Mantis is to fall and escape from been eaten.